Build Date on 84
Thread Starter
Melting Slicks
Joined: Sep 2006
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From: Monroe Twp, NJ
Racer
Joined: Jun 2007
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From: Clarksville TN
http://www.hermetic.ch/cal_stud/jdn.htm
Last edited by Gl!tch; Oct 6, 2007 at 09:28 AM.
Thread Starter
Melting Slicks
Joined: Sep 2006
Posts: 3,194
Likes: 27
From: Monroe Twp, NJ
Click the link below, read, and confuse yourself about Julian dates. I understand the concept but I need a beer help take it in from this article. We used them in the Army for supply and parts ordering; although a Julian date can thusly be proprietary, and only resemble the true Julian calendar. In this case, albeit I don't know it true, Chevrolet could be constructing a Julian calendar based on some sequence of events in the original building of the Corvette. By that I mean the Julian date of 00001 could represent the first day or lunar cycle of the Corvette. It would depend on what they based their dates on. Synonymously IBM and other manufacturers have their own "Julian Calendar" based on the invention or introduction of their product. Is the mud clearer or did I create a mudslide??
http://www.hermetic.ch/cal_stud/jdn.htm
http://www.hermetic.ch/cal_stud/jdn.htm
Team Owner
Joined: Dec 1999
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From: Lacey WA RVN 68-69
NCM Sinkhole Donor
The National Corvette Museum has both build sheets and window stickers available for your car. Go here to find out how to order them.
Non-members pay more but you can join the NCM at the same time and get the member price discount. You're also helping the NCM to become the best resource for Corvette owners world-wide. Any your annual membership fee is tax-deductible as a charitable contribution.
Non-members pay more but you can join the NCM at the same time and get the member price discount. You're also helping the NCM to become the best resource for Corvette owners world-wide. Any your annual membership fee is tax-deductible as a charitable contribution.
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From: Beautiful Down Town "SWINDLEHURST" Long Island NY
Racer
Joined: Jun 2007
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From: Clarksville TN
That would be true IF and only IF the statement is correct. That's why I was using other examples. I don't know for positive that Chevy was doing that although it is a high possibility for their own record keeping. When we had to use such calendars for aircraft parts I had a matrix that converted month/day/year to a Julian Date. 
Team Owner
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From: Lacey WA RVN 68-69
NCM Sinkhole Donor
Many businesses that involve production lines use a form of "Ordinal Dates" and that is typically what appears on the build sheet It's a usually a 5-position value where the year was the first two digits, followed by a three digit value where January 1st was 001 and went to December 31st as being 365 (or 366 for Leap Year). Sometimes the date is shown with a forward slash between the year and the consective date as in 83/304
So for November 1983, the "Ordinal Date" range would be 83304 through 83333.
This date on the build sheet may not be the day that the car actually starts down the assembly line. It may be the date the car was scheduled for production or the date the order was entered into the system. There are different versions or formats of the build sheet and some will even have a time printed below the date.
So for November 1983, the "Ordinal Date" range would be 83304 through 83333.
This date on the build sheet may not be the day that the car actually starts down the assembly line. It may be the date the car was scheduled for production or the date the order was entered into the system. There are different versions or formats of the build sheet and some will even have a time printed below the date.